(access_keymap): If a binding of the form (GENERIC-CHAR

. BINDING) exists, where GENERIC-CHAR is the generic character of
the charset of IDX, return BINDING, unless there exists or binding
for IDX itself.

1 files changed, 25 insertions, 2 deletions

diff --git a/src/keymap.c b/src/keymap.c
index 5da93ee89f0..c4054f3a95a 100644
--- a/src/keymap.c
+++ b/src/keymap.c
@@ -502,8 +502,11 @@ access_keymap (map, idx, t_ok, noinherit, autoload)
   {
     Lisp_Object tail;
     Lisp_Object t_binding;
+    Lisp_Object generic_binding;
 
     t_binding = Qnil;
+    generic_binding = Qnil;
+    
     for (tail = XCDR (map);
          (CONSP (tail)
           || (tail = get_keymap (tail, 0, autoload), CONSP (tail)));
@@ -521,7 +524,10 @@ access_keymap (map, idx, t_ok, noinherit, autoload)
           }
         else if (CONSP (binding))
           {
-            if (EQ (XCAR (binding), idx))
+            Lisp_Object key = XCAR (binding);
+            int c1, c2, charset;
+            
+            if (EQ (key, idx))
               {
                 val = XCDR (binding);
                 if (noprefix && KEYMAPP (val))
@@ -530,7 +536,21 @@ access_keymap (map, idx, t_ok, noinherit, autoload)
                   fix_submap_inheritance (map, idx, val);
                 return get_keyelt (val, autoload);
               }
-            if (t_ok && EQ (XCAR (binding), Qt))
+            else if (INTEGERP (idx)
+                     && INTEGERP (key)
+                     && !SINGLE_BYTE_CHAR_P (XINT (idx))
+                     && !SINGLE_BYTE_CHAR_P (XINT (key))
+                     && CHAR_VALID_P (XINT (key), 1)
+                     && !CHAR_VALID_P (XINT (key), 0)
+                     && (CHAR_CHARSET (XINT (key))
+                         == CHAR_CHARSET (XINT (idx))))
+              {
+                /* KEY is the generic character of the charset of IDX.
+                   Use KEY's binding if there isn't a binding for IDX
+                   itself.  */
+                generic_binding = binding;
+              }
+            else if (t_ok && EQ (XCAR (binding), Qt))
               t_binding = XCDR (binding);
           }
         else if (VECTORP (binding))
@@ -567,6 +587,9 @@ access_keymap (map, idx, t_ok, noinherit, autoload)
         QUIT;
       }
 
+    if (!NILP (generic_binding))
+      return get_keyelt (generic_binding, autoload);
+
     return get_keyelt (t_binding, autoload);
   }
 }